docs: def serializeAuthors(self):
          """
           This method creates a fixture for the "django-tethne_author" model.
  
          Returns
          -------
  
          Author details in JSON format, which can be written to a file.
  
          """
          author_details = []
          auid = tethnedao.getMaxAuthorID()
          for val in self.corpus.features['authors'].index.values():
              auid = auid + 1
              self.authorIdMap[val[1]+val[0]] = auid
              instanceData = {
                      "model": "django-tethne.author",
                      "pk": auid,
                      "fields":{
                          "first_name": val[1],
                          "last_name": val[0],
                      }
                  }
              author_details.append(instanceData)
          return author_details